package com.kuaiyiwang.springcloud.alibaba.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.kuaiyiwang.springcloud.alibaba.service.PaymentService;
import com.kuaiyiwang.springcloud.entities.CommonResult;
import com.kuaiyiwang.springcloud.entities.Payment;
import com.sun.deploy.security.BlockedException;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;

@RestController
public class CircleBreakerController {

    public static final String SERVICE_URL="http://nacos-payment-provider";

    @Resource
    private RestTemplate restTemplate;

    @GetMapping("/consumer/fallback/{id}")
    //@SentinelResource(value = "fallback") //没有配置
    //@SentinelResource(value = "fallback",fallback = "handlerFallback")
    //@SentinelResource(value = "fallback",blockHandler = "blockHandler")
    @SentinelResource(value = "fallback",fallback = "handlerFallback",blockHandler = "blockHandler",exceptionsToIgnore = {IllegalArgumentException.class})
    public CommonResult<Payment> fallback(@PathVariable("id") Long id){
        CommonResult<Payment> result = restTemplate.getForObject(SERVICE_URL+"/paymentSQL/"+id,CommonResult.class,id);
        if(id == 4){
            throw new IllegalArgumentException("IllegalArgumentException，非法参数异常");
        }else if(result.getData() ==null){
            throw new NullPointerException("NullPointerException，该ID没有对应的记录，空指针异常");
        }
        return  result;
    }


    public  CommonResult handlerFallback(@PathVariable Long id,Throwable e){
        Payment payment = new Payment(id, "null");
        return new CommonResult<>(444,"兜底异常handlerFallback,exception内容"+e.getMessage(),payment);
    }

    public  CommonResult blockHandler(@PathVariable Long id, BlockedException blockException){
        Payment payment = new Payment(id, "null");
        return new CommonResult<>(444,"blockHandler-sentinel限流，无此流水：blockException"+blockException.getMessage(),payment);
    }

    //==========openFeign
    @Resource
    private PaymentService paymentService;
    @GetMapping(value = "/consumer/paymentSQL/{id}")
    public CommonResult<Payment> paymentSQL(@PathVariable("id") Long id){
        return paymentService.paymentSQL(id);
    }
}
